Bundling machine



July 2, 1929. c. T. SCHWAB BUNDLING MACHINE Filed NOV. 50, 1927 6 Sheets-Sheet July 2, 1929. C, T, SCHWAB 1,719,732

BUNDLING MACHINE Filed Nov. 50, 1927 6 Sheets-Sheet 2 /y mam @La/MMM /ILM Awa,

july 2, 1929. c. T scHWAB 1,719,732

BUNDLING MACHINE Filed Nov, 30, 1927 6 Sheets-Sheet 5 Chads ZT cizwab, /Qy nAfwLwrM @www 6me aw/.sn

July 2, 1929. c. T. SCHWAB 1.719.732

BUNDLING MACHINE lzlzeni'or:

Chagles Y. Schwab,

July 2, 1929. Q T, SCHWAB 1.719.732

BUNDLING MACHINE Filed Nov. 5U, 1927 6 Sheets-$heet 5 l Ml /139 160 l/I 140 HY g Charles 7.1r fczwa, ,by Ml mm ./HAq

Invenior.- 1

July 2, 1929. C, T, SCHWAB 1,719,732

BUNDLING MACHINE mmm 2 I nueor. i

Patented July 2, 1929.

UNITED STATES PATENT OFFICE.

CHARLES T. SCHWAB, OF SHARON, PENNSYLVANIA, .AFSSIG-NOR TO SHARON STEEL HOOP COMPANY, 0F SHARON, PENNSYLVANIA, A CORPORATON OF PENNSYL- VANIA.

B'UNDLING MACHINE.

Application filed November 30, 1927.

This present invention relates to a bundling machine for tying bundles or coils ot` wire, or metal strips.

The principal object ot the invention is to provide means whereby a coil or bundle of wire, or metal strip is received from the coiling mechanism, a section or length ot wire passed. around the bundle through the annulus therein and the ends twisted to secure them together. From this point the tied bundle is then removed trom the mechanism and discharged to any desired point.

Another important object is to provide means as above which will accommodate strips of various widths without intricate adjustments being required in the mechanism.

Other objects will appear as the description proceeds and with reference to the accompanying drawings.

To this end the invention contemplates a machine including a wire or strip receivingl rotary element which Yforms the continuous length of material into a coil. Mechanism is provided to take this coil upon a carriage, transport it to to a point where a bundling wire is .ted downwardly in proximity to the coil. The coil is then iturther moved against the ted down wire which by this operation is bent aroundthe outside and through the annulus ot the coil. At this-point twister lingers grip the protruding ends ot the tie wire and through suit-able mechanism is made to twist the wire ends securely, thus tying the coil. From this position the tied bundle moves backward over the same path to its point of discharge.

The invention further consists in the novel arra-ngeu'ient, combination and construction of parts more tully hereinafter described and shown in the accompanying drawings7 in which: y

Fig. l is a front elevation of a device embodying the invention.

Fig. 2 is a top plan view ot the same.

Fig. 3 is an end elevation viewed `.trom the right end of the machine.

Fig. 3a is a plan ot the coil-clamp operating cam.

Fig. 3b is a plan ot the cyelc-oioperations cam.

Fig. l is a vertical transverse section on line i-ll ot Fig. 1.

Fig. 5 is an enlarged sectional detail oit the shear operating mechanism.

Fig. 6 is tace view of Fig. 5.

Serial No. 236,870.

Fig. 'i' is an enlarged detail sectional View ot the twister arm ratchet connection.

Fig. 8 is a detail sectional view on the line 8*@ of Fig. l.

Fig. 9 is a similar view on line 5)-9 of Fig. l.

Fig. 10 is an enlarged. sectional plan view of the shifting drive clutch mechanism.

Fig. 11 is a :tragrmental elevation of the twister arm operating mechanism.

Fig. l2 is a vertical sectional view, with parts in elevation, et the coil during the dwell period for binding wire 'feed down.

Fig. 13 is a similar view during the wire bending operation.

Fig. 13'L is a detail section oil the telescoping tube ttor the binding wire.

Fig. 14 is a view similar to Figs. 12 and 13 showing the parts during the completion oit the binding wire bending operation.

Fig. le is a similar view showing the tied coil released for discharge.

Referring now to the torni illustrated, therel is shown at l a concrete or other base upon which is mounted 'frames 2 and 3 ol? substantially rectangular term which carries stationary guide rods Ll and 5 and a partially rotatable rod 6. The rod G is secured in bearings 7 and 8 by collar 9 and set screw l0.

Power is delivered to the machine from any suitable source through a group et three chains ll which engage spri'iclets l2 rigidly mounted upon the driven shaft 13. Power is then taken trom the shaft 13 to the various parts of the machine as will be more "liully described hereinafter.

At the lett-hand end oli the machine, a coiler is provided consisting ot a shatt le rotated in any suitable manner, which shalt passes through an opening l5 in the traine part 3. On the inside of the trame and cured to the shaitt is the coiler proper consisting of a disc '16 having pegs 17 outstanding therefrom upon which the wire or strip is coiled.

The material to be coiled may be conveniently taken upon the coilcr 16 over idler roller 1S trom the source of supply. It is understood that the power driven coiler pulls the wire or strip over the roller 18 to itsell'. As shown it will be seen that Various widths of strip may be accornmodated on the coiler, the maximum width being indicated by dot and dash lines at the extreme le'lt o'l Fig. l.

Alter a coil et the proper dimensions has binding Cil been produced upon the coiler, sui table shears (not shown as not being a part of this machine) sever the strip and the coiled bundle is then ready for tying. y

Mounted for 'horizontal movement upon the rods 4, 5 and 6 is a carriage mechanism consisting of the carriage proper 19 having an ear attached to one face, to which is pivoted a link 21 by means of pin 22, a link 23 being secured to link 21 by pin 23. To the last named link is pivoted one end of a lever 24 as by pin 25, which lever is fulcrumed at 26 in a bearing on the carriage 19. rlhe other end of the lever 24 carries a coil supporting shoe 27 pivoted thereto, and adapt-ed to underlie the coil. The shoe 27 has ya heel 28 which prevents the shoe from slipping beneath the coil. For convenience, only one shoe is shown, although obviously a plurality ofsuch shoes might be provided if found necessary. In Fig. 9 additional ears 2Oa are shown to which additional links would be attached.

Fig. l5 shows the coil supporting shoe and associated mechanism in the position of releasing the coil, whilein Fig. 1 the parts are illustra-ted as. supporting coil. Also attached to the pin 23 is a third link 29 pivoted at its opposite end as at 30 to an ear 31 attached to the face of one of a pair of disc members 32 and 33. Each of these discs is provided with a central aperture through which a rack bar 34 slides. While there may be movement between the discs and the rack bar, yet both discs are mounted and supported upon the rack bar 34. kThe series of links 21, 29 makes the connection between disc 32 and the carriage 19. v

Sockets are provided in the opposed faces of the-discs 32 and 33 and coil springs 35 located in these sockets tend to space them apart. Screws 3G limit the separation 'of discs 32 and 33 and this separation may be regulated by adjusting the set screws 36.

On the opposite face of disc 33,11. pair of ears 37 (Fig. 8) is provided, to which the upper bifurcated end 38 of a bell crank is pinned as at 39. The end 38 is provided with elongated slots which permits movement of the bell crank.

The bell crank 4O is fulerumed at 41 to an extension 42 of the carriage 19, the pivot pin being shown at 43. The other end 44 of the bell crank works in an elongated slot in an ear 45 (Fig. 3) attached to a hub 46 feathered to the shaft 6 so as to slide horizontally thereon'. Oscillation therefore, of the shaft G through an arc will rock the bell crank 40 aboutits pivot.

Shaft 6 is oscillated through movement of lever 47 (Fig. 3) keyed thereto, which lever is provided at itsend with an adjustable link 48 connected to a cam roller arm 49. This arm is pivotally held in a bearing 50 formed in a bracket extension 51 of the frame 2. The

arm 49 carries a cam roller 52 at its end which rides in an irregular slot in one face of a cam 53 termed the coil shoe-operating cam (Fig. 3), this cam is keyed to driven shaft 54 which receives its power from thc above described power shaft 13 by chains 55 and sprockets 5G and 57.

Therefore, while the cam roller 52 occupies that portion of its slot nearest the ccnter of shaft 54 (Fig. 3*), the coil supporting shoe 27 will engage the coil, and will he freed from the coil when the cam roller occupies the outermost portion of the slot that is opened.

It will be seen that any irregularities in the outer over-all diameter of the coil due to winding will be compensated for by means of the springs 35 so that the shoes 27 will engage the coil only sufiiciently to accomplish the purpose for which they were designed without damage either to the remaining mechanism or the coil.

In order to bind the coil, held as in the position shown in Figs. 1 or 12, the following mechanism is provided.

Mounted upon the two upper horizontal supporting rods 4 and 5, a bracket 58 is provided (Fig. 1) being` secured rigidly thereto between the carriage 19 and the frame 2. Upon the upper portion of this bracket is supported the binding wire feed mechanism (Fig. 2) which is driven by means of chain 59 from the drive shaft 13 to sprocket G0 freely rotatable on the stub shaft G1 which is carried in the bearings 62.

The other end of shaft 61 carries a beveled gear G3 meshing with a similar `gear (54 carried by a shaft 65 mounted in bearing (3G and carrying an enlarged wheel G7. .Adjustably attached to the wheel 67 is a (.onnecting` rod 68, pivoted at its end to a rack G9 mounted forhorizontal movement and engaging a pinion 70 on a shaft 71. Upon this shaft is mounted an enlarged gear 72 meshing with the toothed hub of a feed roll 73. The feed roll 73 and its fellow 74 are carried in ,bearings 75 and 75 and are grooved on their periphery as at 76 to receive the bundling Wire 77. A ratchet mechanism shown generally at 78 prevents backward movement of the wire feed roll during backward movement of the rack 69.

As the coil bearing carriage moves toward the right of Fig. 1, a spring trip 79 mounted on top thereof engages the end of a lever 80 fulcrumed at 81 on a bearing 82 carried by the bracket 58 and moves the lever to the right. Secured to the lever 8O at 83 is the cam rod 84 to which is pivoted lever 85 at its left end, said lever being also pivoted as at 86 to an extension 87 of the bracket 58. A stop 88 on the lever 85 engages the projection 89 and limits the horizontal movement of the cam arm 84. The end of the arm 84 carries a cam 90 which in its movement ltltl llt) i toward the right engages a roller `91 at the end of a vertical shaft 92 and causes the same to move upwardly. The top of the shaft 92 engages the lever 9) pivoted as at 94. and lifts its end 95 out of the cam slot 96 in the clutch member 97 which is feathered to the shaft. Thus the spring 98 moves the feathered clutch member 97 int-o engagement with itsI loose fellow 60. 1n this manner movement o f the carriage to the right causes feed of the bindingl wire downward.

Obviously, when the end of the arm clears the foldable trip 79, the spring 99 returns the cam and arm to their initial position, thus allowing the spring 100 on the rod 92 to function and pull the rod downwardly. This permits the arm 93 to drop and its end enters the cam slot 96, rotation of the members 96 and 60 continues, however, until the end 95 of the arm 98 acting on the rear wall of the cam slot 96 separates the parts and feed of the wire ceases.

The binding wire is fed downwardly through a 'trough shaped guide member (Fig. 13a) comprising a fixed portion 110 and a telescopically movable portion 111, movable with the shear blades. Additionalwire is fed required from supply X (Fig. 8).

The binding wire is now in the position shown in Fig.12.

As the coil continues its movement to the right it strikes depending lever 101 (Figs. 5 and 6) fixed to shaft 102 which is Carried in bearing 103, a part of the bracket 58.

` The shaft 102 terminates in a bevel gear 104 which meshes with a similar gear 105, carried on the end of vertical shaft 106. The shaft 106 carries at its top a shear blade 107 (Fig. 12) rotatable toward and away from its fixed fellow 108 as the lever 101 is moved to the right or left respectively. As above described it is movedV to the right under impulse of the moving coil and to the left by means of a spring 108 which encircles the shaft 106. `Both shear blades are held in position by frame 109 (Fig. 1) secured to the frame 58 as by means of a set screw, and as each shear blade is feathered to its support, movement of the frame 109 up or down will determine where` the tying wire will be cut, but without disturbing the relative positions of the blades to each other.

As the coil passes from the position of Fig. 12 to that of Fig.. 18, it carries the severed bindingl wire with it until it strikes three obstructions, to wit, bender finger 112, bumper pad 118, and fixed forming foot 1111.

The bender finger 112 is pivoted at 115 to a portion of the bracket 58 `and is normally pressed downwardly by means of spring 116 encircling the stud 117 fixed to the linger and passing through the bracket 58. A button 118 on the top of stud 117 limits downward movement ofthe linger to a point so that all coils progressing to the right will pass under the linger end yet allowing the finger to press upon the coil and the binding wire (Fig. 6). i

` As the coil thus moves to the right the end ofthe bender hnger 112 causes the top portieri of the section Vof binding wire to bodily leave its guide trough and 111 and be folded down on top of the coil (Fig. 13). During this movement of the coil the spring 116 presses the bender linger tightly upon the binding wire and the coil.

During this progress of the coil, it has met the bumper pad 113 carried at the end of the horizontally movable rod 119 which passes through an accommodating aperture in a depending portion of the bracket 58. A spring 120 eneircles the rod 119 and is held between collar 121 fixed to rod 119 and stop 122 held by a pair of rods 123 screwed into the bracket 58. Thus the pad 113 holds t-he length of binding wire against the vertical face of the coil while the wire is being bent around the coil.

The third obstruction which the coil meets t-he end of the forming foot 114 (Fig. 13), which is a part of the bracket 58 and extends within the annulus of the coil. This foot bends the lower end of the binding wire through the annulus to meet the upper end.

As the coil progresses from the position of Fig. 13 to that of Fig. 14.-. an outwardly extending projection 124 on the carriage 19, which projection. includes an inclined cam 125 rotatable about a vertical pin 126 causes the rod 127 to move upwardly `by reason of roller 128 at the end thereof riding up the inclined face of the cam 125. The rod 127 passes through a portion of the bracket 58 and loosely pinned as at 129 tothe lever 130 fulcrumed at 131 on the bracket 58.

The other and bifurcated end of the lever 130 straddles the shank 132 of a presser footy 188 slidable through bearing 184, the end 130 being held between fixed stops 135 on the shank. The shank 132 is provided with a. longitudinal groove 136 curved at its lower end and a key or dog` 137 fixed to the bracket 58 rides therein. As `shown it` will beseen that downward movement of the shank 132 will cause tl'iepresscr foot 183 to rotate toward the` coil with the result that the upper end of the wire is bent down along the vertical face of the coil to cross the lower end protruding through the annulus to the position shown in Fig. 1/1.

Final niovelnent of the coil to the right causes the roller to ride over the top of cam 125 and drop down behind it under the action of 'springl-SS acting `on the rod 127. This throws the presser footll?) away from the coil and carries it up out of the way.

The coil is new ready to have the ends of the binding wire twisted together.

The twister mechanism isset in operation by trip 189 (Fig. 1) which depends from the bottom of the carriage (Fig. 11) striking at the other end to the lower end of a bell crank 143. The bell crank is pivoted at 144 to a bearing support 145 and carries a de` pending roller 146 which is yadapted to enter a cam slot 147 in the feathered clutch member 148, carried by the main drive shaft 13.

As the trip 139 moves starting lever 146 to the right, the roller 146 is lifted from the groove in the feathered clutch member 148 and spring 149 forces it into engagement with the toothed portion 150of the hub of a loose cam element 151 also` mounted on shaft 13, and thus causes rotation of the cam.

As the coil continues its movement to the right the lever 140 slips off the trip'139 to Vthe position of Fig. 11, thus allowing the roller, 146 to drop into the wide part of the cam slot 147 in the feathered clutch member 148. The roller occupies this position, ultimately withdrawing the member 148 from engagement wit-h its fellow ldue to lthe restricted` part of the slot 147.

The -operating cam 151 has av groove 152 in one face to accommodate theroller end 153 ofthe lever 154 mounted as at 155 to the base 1.` The other end of lever 154 carries pivotally one end ofa connecting rod 156, pivotally attached to the lwvister arm 157 (Fig. 4). The shape of the slot in cam 151 is such that the twister arm 157 willv at the proper time in the cycle ofV operationsof the entire mech- Y anism be swung from its extreme inoperative position indicated by dot and dash line at the llight 'of Fig. 4 to its extreme twisting position yshown byv 'dot and dash lines at the left of that figure.

Movement of the cam causes. through the above described mechanism, a rocking action of the twister arm 157 about the counter shaft 158. Thisshaft is supported at each end by bearings 159. r

The mechanisniused to vtwist the binding wire is operated from the main ydrive shaft 13 through chain 160 and sprocket 161 fixed.

to Vthe counter shaft 158.

Loosely mounted upon the counter shaft is A the complimentary clutch member 162, having a toothed face 163 adapted to engage a similar face on the fixed sprocket 161. The two faces move toward each other under impulse of the spring 164 located within the member 162, but normally held from engagement by the end 165 of lever 166'in the narrowl portion of cam slot 167 in the outer periphery'of the member 162. The lever 166 is depressed by a finger 168 (F 7) depending from the twister arm'157. This finger rides up on to the end of the lever 166 as the arm 157 approaches its extreme'left position (Fig. 4). When the end of the lever 166 leaves its slot, thevtwo toothed faces of the parts 161 v and 162 engage and the latter is rotated. This rotation is likewise imparted to gear 169 loose on shaft 158, but teleseopieally engaging part 162 and feathered thereto. Meshing with gear 169 is a pinion 170 which connects with a vertical rod 171 which has a bearing in the finger extension 168 of the twister arm.

The top of rod 171 passes through bearing 172 and is provided with a bevel gear 173 meshing with gear 174 which rotates shaft 175 mounted in the top of the twister arm 157. To the other end of this shaft is feathered a ring 176 having wings 177 which carry twister fingers 178 pivoted to the wings as at 179 and to the shaft as at 180. Thus are the twister fingers given a rotary movement.

In order to clamp or close the twister fingers 17 8 upon the crossed ends of the binding wire, a fixed cam 181 is provided (Figs. 1 and 4) upon which rides a roller 182 carried in the bifurcated end of a rod 183. This roller is held in engagement with the cam by a spring 184 encircling the rod 183 and bearing at one end against fixed stop 185 and at the other against the bearing 186 for the rod. Toggle links 187 and 188 are pivoted to the twister arm 157 and a pusher ring 189 respectively, and commonly to the end of rod 183. The twister ring 176 is freely slidable on the shaft 175 and serves when the roller 182 rides up to the top of the cam 181, to close the twister lingers upon the ends of the binding wire.

It will be noted from Fig. 4 that the twister arm is not yet at its extreme operative position and that the roller 182 is just about to ride to the top of the cam 181 and thereby close the twister fingers upon the wire.

After the twisting action has taken place, the cam 151 will cause a right-hand movement of the twister arm toward its extreme inoperative position in order to clear the path of mechanism so that the carriage bearing the bound coil may be moved to the left of the machine and discharged.

As the twister arm moves to the right the roller 182 rides down the cam 181 and allows the fingers to open. ln the meantime the depending linger 168 (Figs. 1 and 7) will have left the tail of lever 166 thus allowing the other end of the lever to enter the slot 167. Further rotation of the part 162 causes the end 165 to ride into the narrow portion of the slot which parts the members 161 and 162 to the position shown in Fig. 1. This stops rotation of the gear 169 and through it the twister fingers.

In order to prevent backward twisting movement of the fingers 178 as the bevel gear 170 rides over the now stationary gear 169 a ratchet mechanism is provided. This consists of two complimentary ratchet members 190 and 191 (Fig. 7 the former being fixed to a sleeve 192 loose on shaft 171. the latter being feathered to shaft 171. The bevel gear 170 is likewise fixed to the sleeve 192 so that the shaft 171 can be rotated only as long as the toothed faces of parts 190 and 191 are in engagement. Vits shown, due to the angularity of these teeth, engagement is maintained while the parts are rotated in the proper' direction to give the twister lingers their proper rotation. Backward movement, however, due to the right-hand movement of the twister arm 157 causes the memberI 191 to ratchet up over its fellow against spring 191 and therefore the twister fingers can be rotated in one direction only.

The carriage mechanism 19 is caused to move either to the right or left by reason of the cycle-of-operations cam 193 (Fig. 3b). This cam is mounted upon shaft 54 which as above described receives its power from the main shaft 13 through chains 55. This cam is provided with a groove 194 which determines through suitable mechanism the various positions of the carriage.

Riding in the slot 19d is the roller end 195 of hell crank 196 pivoted to a bearing 197 in frame 2, the other end of the crank carrying a ring 198 encircling a sleeve 199 feathered to stub shaft Q00. The ring 193 fits in a peripheral groove in the sleeve so that movement of the ring `in either direction causes similar movement of the sleeve while at the same time permitting' the sleeve to rotate freely with shaft 200 and within the ring.

Each end of the sleeve 199 is toothed asat 201 and 202 to engage similarly toothed faces on pinion gears 203 and 204 respectively, loosely mounted on shaft 200.

Meshing with both pinions is a bevel gear 205 fixed to shaft 20G which shaft carries at its other end a pair of sprockets 207 driven from shaft 13 by chains 208.

From the above it will be seen that movement of the' roller end 195 of the bell crank 196 under impulse of the cam 193, away from the axis of the cam will cause the feathered sleeve (Figs. 3 and 10) 199 to move to the left and engage pinion gear 203. Thus a connection is made between the drive shaft 13 and stub shaft 200 so that the latter will rotate in a counterclockwise direction, (Fig. 2) and vice versa.

@n the end of stub shaft 20() a pinion 209y is keyed which meshes with the toothed surface of rack bar 341;. Thus movement of the feathered sleeve through cani 193 determines the direction of movement of carriage 19. ills the roller end 195 occupies a position between the extreme axial positions of the cam slot (Fig. 3b) the sleeve will occupy a neutral position and the carriage will remain stationary.

A control mechanism providedbetween the drive shaft 13 and the shaft 54C carrying the cycle-of-operations cam 193, and the coilsupporting shoe cam 53 is provided which consists of a starter rod 210 pivoted to an arm 211 attached to a shaft 212 carried in bearings 213 as a part of the frame 2. The shaft 212 also carries the lever 214-, the end of which rides in a peripheral slot 215 of a feathered clutch member 216. This element tends to engage the toothed face of its complimentary sprocket 5G which as has been above described is loosely mounted on shaft 54, under action of the spring 217. Thus when the starter rod is moved to the left (Fig.` 1) the end of lever 21a4 leaves the slot in member 216 and this last mentioned element engages the sprocket carrying part 56 so that the shaft 5&1 is rotated. A reverse movement of rod 210 drops the end of the lever in the slot and when the narrow portion of the groove engages the end, parts .3G and 216 are separated, thus breakin the connection and the whole mechanism stops.

The cycle of operations is as follows:

Assume a bundle of strip material to have been coiled upon coiler 16, and the strip severed. The coil carriage 19 will at this stage be stopped at the location of the tied coil discharge chute 218, (Fig. Q) with the coil supporting shoes in the position of Fig. 15. The roller 195 in the cycle ofioperations cam 193 (Fig. 3h) will be at the stop portion of the groove and the roller 59 in the coil shoe operating cani in the open portion of the groove. The twister arm mechanism (Fig. 4l) will be in the extreme right or inoperative position shown in dot and dash lines. The end of lever 214i: actuated by the starter rod 210 will he occupying the narrow portion of the groove 215 so that there is no driving connection between the power shaft and the shaft 5st. In like manner the binding wire feed mechanism, and the twister finger rotating mechanism, is in inoperative position.

Upon pulling the starter rod to the left (Fig. 1), the automatic clutch mechanism engages and shaft 54 is caused to rotate counter clockwise (Fig. 3). This permits the cycle-of-operations cam 193 to rotate, the roller 195 moving` from stop position into that portion of the slot in a clockwise direction from stop. This causes sleeve 199 (Fig. 10.) to mesh with bevel gear E203 so that shaft 200 is rotated clockwise. This moves the rack bar 34E and carriage 19 to the left, (Fig. 1).

This movement continues, the carriage approaching the coil until roller 195 begins to move radially outwards in the cycle of operations cam 193. This unmeshcs sleeve 199 and gear .203 and the carriage remains stationary, with the coil supporting shoes directly bei neath the coil but open. y

At this point, roller 52 in the coil shoeoperating cam (Fig. 3a) begins a radial movement in its slot. This causes the shaft (3 to rock counter clockwise, (Fig. which through bell crank '10, (Fig. 1) spring discs 32 and 33, and the toggle links, causes up- `ward ymovement'of the coil supporting shoes.

This upward movement continues until the coil is firmly gripped Upon further rotation of the cycle-of-oplerations cam 193, the carriage is reversed and the backward movement begins. This conn The carriage has new paused and is in the position shown in Fig. 12. The spring trip 79 has actuated lever 80 (Fig. 1) and the wire feed has through its mechanism, begun.

The cycle-of-operations cam continues its movement and the carriage passes to the position shown in Figs. 13 and 14 with the result that the binding wire is severed, folded upon the top andthrough the annuliis of the coil while being held by bumper pad 113.

- Before the carriage reached its extreme right position (Fig. 1) the lever 140 (Figs. 1 and 2) was caughtand moved by spring trip 189 with the resulttliat the automatic clutch Amechanism of the twister assembly was thrown in. This instituted movement of the twister arm from its inoperative right position to its 'operative left position (Fig. 1). As the finger 168 (Fig. 1) rides up on lever 166, the twister linger drive clutch is engaged and at the same time the rod 183 rides up the cam 181. Thus the twister fingers are closed upon the protruding ends of the binding wire and rotated to bind the coil as in Fig. 15.

The twister arm mechanism, now reversed, duc to its cani 151 (Fig. 4L) and before the carriage starts forward with the bound coil, the twister arm is in its remote inoperative position and out of the way with its clutch disengaged.

The carriage new moves forward by reason of thecontinued rotation ofthe cycle-of-operations cain until the stop position is again reached. At that time the roller in the coil supporting slice cani has moved outwardly in a radial direction with the result that the"- carrying means held in said frame, means moving on said guide rods for carrying a coil to be bound and the bound coil after binding, means for feeding a binding wire to the coil,

-means for shearing and bending the wire about the coil, means for twisting the ends of the wire bent about the coil. and means for controlling the cycle of operations.

2. A device of the character described coniprising a drive and a shaft driven thereby, a reciprocating shaft parallel to the driven shaft, a carriage movable on horizontal guide rods and with the reciprocating shaft, a connecting shaft between the two first mentioned shafts, a. constantly rotatingT cani from which the cycle of operations of the entire mechanism is controlled, a sleeve feathered to the connecting shaft operating means between the cam and the sleeve, a gear at each end of the sleeve and loosely mounted en the connecting shaft, said sleeve being movable into engagement with either gear to determine the direction of reciprocation of the reciprocating shaft and means to bundle a coil held on the carriage.

In testimony whereof, I aix my signature.

CHARLES T. SCHWAB. 

